Extreme Networks Extreme 7520 Series Hardware Installation Manual page 46

Install Cable
installation. Ensure that the bend radius for fiber optic cables is equal to at least 5 cm (2
in) for each 90-degree turn as shown in
Note
Kinks and sharp bends can destroy or impair the cable's ability to convey light
pulses accurately from one end of the cable to the other. Use care in dressing
the optical fiber cables: provide satisfactory strain relief to support the cable
and maintain an adequate bend radius at all cable turns, particularly where the
cable connects to the I/O module.
Figure 16: Bend Radius for Fiber Optic Cable
1 = Minimum 5 cm (2 in) radius in 90° bend
Cable Distances and Types
Table 12 shows one example of cable media types and maximum distances that
support reliable transmission in accordance with international standards (except where
noted). Refer to the
well as a complete list of supported cable lengths, and a list of the cable types that are
compatible with your equipment.
Table 12: Cable Distances and Types
Standard
1000BASE-SX
(850nm optical window)
46 Extreme 7520 Hardware Installation Guide
Figure
Extreme Optics website for descriptions of optics and cables, as
Media Type
50/125 µm multimode fiber
50/125 µm multimode fiber
62.5/125 µm multimode fiber
62.5/125 µm multimode fiber
16.
MHz•km
Rating
400
500
160
200
Site Preparation
Maximum
Distance (Meters)
500
550
220
275